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r9292@totoro: nickm | 2006-11-12 16:33:36 -0500

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A couple of small tweaks; add infranet reference.


svn:r8938
This commit is contained in:
Nick Mathewson 2006-11-12 21:56:34 +00:00
parent 450016f4fd
commit 54ec19252f
2 changed files with 19 additions and 6 deletions
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16
doc/design-paper/blocking.tex
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@ -82,13 +82,16 @@ by blocking all the server IP addresses in the directory, or by filtering
based on the signature of the Tor TLS handshake. Here we describe an based on the signature of the Tor TLS handshake. Here we describe an
extended design that builds upon the current Tor network to provide an extended design that builds upon the current Tor network to provide an
anonymizing anonymizing
network that also resists this blocking. Specifically, network that resists censorship as well as anonymity-breaking attacks.
Section~\ref{sec:adversary} discusses our threat model---that is, In section~\ref{sec:adversary} we discuss our threat model---that is,
the assumptions we make about our adversary. Section~\ref{sec:current-tor} the assumptions we make about our adversary. Section~\ref{sec:current-tor}
describes the components of the current Tor design and how they can be describes the components of the current Tor design and how they can be
leveraged for a new blocking-resistant design. Section~\ref{sec:related} leveraged for a new blocking-resistant design. Section~\ref{sec:related}
explains the features and drawbacks of the currently deployed solutions; explains the features and drawbacks of the currently deployed solutions.
and ... In sections~\ref{sec:bridges} through~\ref{sec:discovery}, we explore the
components of our designs in detail. Section~\ref{sec:security} considers
security implications; ..... %write the rest.
% The other motivation is for places where we're concerned they will % The other motivation is for places where we're concerned they will
% try to enumerate a list of Tor users. So even if they're not blocking % try to enumerate a list of Tor users. So even if they're not blocking
@ -152,7 +155,8 @@ We assume that the attackers' goals are somewhat complex.
blocked information is also not a goal, given the broadness of most blocked information is also not a goal, given the broadness of most
censorship regimes. This seems borne out by fact.\footnote{So far in places censorship regimes. This seems borne out by fact.\footnote{So far in places
like China, the authorities mainly go after people who publish materials like China, the authorities mainly go after people who publish materials
and coordinate organized movements~\cite{mackinnon}. If they find that a and coordinate organized movements~\cite{mackinnon-personal}.
If they find that a
user happens to be reading a site that should be blocked, the typical user happens to be reading a site that should be blocked, the typical
response is simply to block the site. Of course, even with an encrypted response is simply to block the site. Of course, even with an encrypted
connection, the adversary may be able to distinguish readers from connection, the adversary may be able to distinguish readers from
@ -230,7 +234,7 @@ Section~\ref{subsec:trust-chain} for discussion on helping the user
confirm that he has a genuine version and that he can connect to the confirm that he has a genuine version and that he can connect to the
real Tor network. real Tor network.
\section{Components of the current Tor design} \section{Adapting the current Tor design to anticensorship}
\label{sec:current-tor} \label{sec:current-tor}
Tor is popular and sees a lot of use. It's the largest anonymity Tor is popular and sees a lot of use. It's the largest anonymity

9
doc/design-paper/tor-design.bib
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@ -1365,6 +1365,15 @@ Stefan Katzenbeisser and Fernando P\'{e}rez-Gonz\'{a}lez},
note = {\url{http://prisms.cs.umass.edu/brian/pubs/bissias.liberatore.pet.2005.pdf}}, note = {\url{http://prisms.cs.umass.edu/brian/pubs/bissias.liberatore.pet.2005.pdf}},
} }
@InProceedings{infranet,
author = {Nick Feamster and Magdalena Balazinska and Greg Harfst and Hari Balakrishnan and David Karger},
title = {Infranet: Circumventing Web Censorship and Surveillance},
booktitle = {Proceedings of the 11th USENIX Security Symposium},
year = {2002},
month = {August},
note = {\url{http://nms.lcs.mit.edu/~feamster/papers/usenixsec2002.pdf}},
}
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